diff options
Diffstat (limited to 'asl/box.hpp')
| -rw-r--r-- | asl/box.hpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/asl/box.hpp b/asl/box.hpp index 795b6dd..9d3c7f0 100644 --- a/asl/box.hpp +++ b/asl/box.hpp @@ -35,6 +35,13 @@ public: , m_alloc{ASL_MOVE(other.m_alloc)} {} + template<is_object U> + requires convertible_from<T*, U*> + constexpr box(box<U, Allocator>&& other) // NOLINT(*-explicit-conversions) + : m_ptr{exchange(other.m_ptr, nullptr)} + , m_alloc{ASL_MOVE(other.m_alloc)} + {} + constexpr box& operator=(box&& other) { if (this == &other) { return *this; } @@ -93,6 +100,9 @@ public: template<is_object U, allocator A> friend constexpr U* leak(box<U, A>&&); + + template<is_object U, allocator A> + friend class box; }; template<is_object T, allocator Allocator = DefaultAllocator, typename... Args> |